<template>
  <div>
    <el-breadcrumb separator="/">
      <el-breadcrumb-item to="/home">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色列表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <!--<el-row></el-row>-->
      <el-button type="primary">添加角色</el-button>
      <el-table :data="roleList" style="width: 100%" border stripe>
        <el-table-column type="expand">
          <template slot-scope="scope">
            <!-- <pre>{{scope.row.children}}</pre> -->
            <el-row
              v-for="(item1, i1) in scope.row.children"
              :key="item1.id"
              :class="['vcenter', 'bdbottom', i1 === 0 ? 'bdtop' : '']"
            >
              <el-col :span="4">
                <el-tag
                  closable
                  @close="showDelRightsDialog(scope.row, item1.id)"
                  >{{ item1.authName }}</el-tag
                >
                <i class="el-icon-caret-right"></i>
              </el-col>
              <el-col :span="20">
                <el-row
                  v-for="(item2, i2) in item1.children"
                  :key="item2.id"
                  :class="['vcenter', i2 === 0 ? '' : 'bdtop']"
                >
                  <el-col :span="5">
                    <el-tag
                      type="success"
                      closable
                      @close="showDelRightsDialog(scope.row, item2.id)"
                      >{{ item2.authName }}</el-tag
                    >
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <el-col :span="19">
                    <el-tag
                      type="warning"
                      v-for="item3 in item2.children"
                      :key="item3.id"
                      closable
                      @close="showDelRightsDialog(scope.row, item3.id)"
                      >{{ item3.authName }}</el-tag
                    >
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
          </template>
        </el-table-column>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="roleName" label="角色名称"> </el-table-column>
        <el-table-column prop="roleDesc" label="角色描述"> </el-table-column>
        <el-table-column label="操作" width="300px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini"
              >编辑</el-button
            >
            <el-button type="danger" icon="el-icon-delete" size="mini"
              >删除</el-button
            >
            <el-button
              type="warning"
              icon="el-icon-setting"
              size="mini"
              @click="showSetRightDialog(scope.row)"
              >分配权限</el-button
            >
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <el-dialog
      title="分配权限"
      :visible.sync="setRightDialogVisible"
      width="50%"
      @close="setRightDialogClose"
    >
      <el-tree
        :data="rightList"
        :props="rightListProps"
        show-checkbox
        node-key="id"
        default-expand-all
        :default-checked-keys="rightDefKeys"
        ref="treeRef"
      ></el-tree>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRightDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="allotRights">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      roleList: [],
      setRightDialogVisible: false,
      rightList: [],
      rightListProps: {
        label: 'authName',
        children: 'children'
      },
      rightDefKeys: [],
      roleId: ''
    }
  },
  created() {
    this.getRoleList()
  },
  methods: {
    async getRoleList() {
      const { data: res } = await this.$http.get('roles')
      //   console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.roleList = res.data
    },
    async showDelRightsDialog(role, rightId) {
      const result = await this.$confirm(
        '此操作将永久删除该权限, 是否继续?',
        '提示',
        { confirmButtonText: '确定', cancelButtonText: '取消', type: 'warning' }
      ).catch(e => e)
      // console.log(result)
      if (result !== 'confirm') {
        return this.$message({ type: 'info', message: '已取消删除' })
      }
      //   this.$message({ type: 'success', message: '确认删除!' })
      const { data: res } = await this.$http.delete(
        `roles/${role.id}/rights/${rightId}`
      )
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message({ type: 'info', message: '删除失败' })
      }
      this.$message({ type: 'success', message: '删除成功!' })
      role.children = res.data
    },
    async showSetRightDialog(role) {
      const { data: res } = await this.$http.get('/rights/tree')
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.rightList = res.data
      this.getLeafKeys(role, this.rightDefKeys)
      this.setRightDialogVisible = true
      this.roleId = role.id
    },
    setRightDialogClose() {
      this.rightDefKeys = []
      this.roleId = ''
    },
    getLeafKeys(node, arr) {
      if (node.children == null) {
        return arr.push(node.id)
      }
      node.children.forEach(element => this.getLeafKeys(element, arr))
    },
    async allotRights() {
      const rights = [
        ...this.$refs.treeRef.getCheckedKeys(),
        ...this.$refs.treeRef.getHalfCheckedKeys()
      ].join(',')
      const { data: res } = await this.$http.post(
        `roles/${this.roleId}/rights`,
        { rids: rights }
      )
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.$message.success(res.meta.msg)
      this.getRoleList()
      this.setRightDialogVisible = false
    }
  }
}
</script>

<style lang="less" scoped>
.bdtop {
  border-top: 1px solid #eee;
}
.bdbottom {
  border-bottom: 1px solid #eee;
}
.vcenter {
  display: flex;
  align-items: center;
}
</style>
